JP4133363B2 - Cover cap for jet head and aerosol container with cover cap - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cover for an ejection head in which a cover cap body that covers the ejection head from above is detachably attached to a cover cap base that surrounds the ejection head that is projected so as to be pushed down by the container head. The present invention relates to an aerosol container with a cap and a cover cap.
[0002]
[Prior art]
When the cover cap body that covers the spray button from above is attached to the shoulder cover as the cover cap base portion of the aerosol container, for example, as disclosed in Patent Document 1, the protruding portion at the lower end of the cover cap body is the shoulder cover. It is usual to make it engage with the recessed part formed in the outer peripheral surface. Even when a pump injection head having a discharge pipe that is operated up and down is attached to the mouth of a container, the cover cap is usually engaged in a concave-convex manner as disclosed in Patent Document 2, for example.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-167356 [Patent Document 2]
Japanese Utility Model Publication No. 6-42756 [0004]
[Problems to be solved by the invention]
In the case of such concave-convex engagement, it is necessary to push in from the top when the cover cap body is mounted, and to remove the cover cap body in a state where it is tilted slightly so that it can be easily detached. On the other hand, if the conventional screw-in type is used instead of the push-in type, a rotation operation with a large rotation amount is required at the time of attachment / detachment.
[0005]
SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an ejection head cover cap that can be attached and detached with a simple and light operating force without requiring screwing or pushing operation, and an aerosol container with the cover cap. And
[0006]
[Means for Solving the Problems]
In order to achieve this object, the present invention provides a cover for covering an ejection head from above on a cover cap base that surrounds the ejection head protruding so as to be pushed down on the container head. In the cover cap for an ejection head to which the cap body is detachably mounted, the cover cap base includes first and second annular peripheral surfaces that reduce the outer diameter in a stepped manner as it goes upward, A plurality of guide portions that are inclined so as to gradually descend toward one rotation direction and protrude by a thickness thinner than the thickness of the base end portion of the cover cap body are intermittently formed on the first peripheral surface portion. A driven portion that is formed and is in contact with the first peripheral surface portion and slides along the guide portion is formed on the inner peripheral surface of the base end portion, and the lower end of the cover cap main body is connected to the first peripheral surface portion. Located at the bottom of A stopper portion that restrains the driven portion that is rotated in one rotational direction so as to be separated from the guide portion in a state where the driven portion slides and descends so as to be seated on the protruding surface. A locking claw is formed in the upper region between adjacent guide portions on the second peripheral surface portion, and is driven in the upper region of the driven portion on the inner peripheral surface of the cover cap body. The to-be-latched nail | claw with which a part is restrained by the latching claw in the state restrained by the stopper part each protruded toward the 2nd surrounding surface part.
[0007]
If the cover cap body is pushed downwards with the driven part intruding between the guide parts from above and pressing against the guide part, the driven part slides along the guide part and the lower end of the cover cap body is brought into contact with the protruding surface. Sit down. Further, when the cover cap body is rotated in one rotation direction, the driven portion is restrained by the stopper portion, and the latched claw occupies the back side position of the latching claw and is prevented from being pulled out. When the cover cap body is rotated in the direction opposite to the one rotation direction, the driven portion slides upward along the guide portion, and the cover cap body is removed.
[0008]
According to claim 2, the cover cap base part is an annular peripheral surface base part, and a middle receding peripheral surface part as a first peripheral surface part that gradually decreases the outer diameter stepwise as it goes upward from the peripheral surface base part. And an upper receding surface portion as the second peripheral surface portion, thereby forming a shoulder cover that covers the shoulder portion of the container, and as a projecting surface between the upper end of the peripheral surface base portion and the lower end of the retracted peripheral surface portion of the middle stage. 4 or more serrated guide parts are formed at equal intervals on the retreating peripheral surface part of the middle stage, the rising part of the serrated guide part is formed as a stopper part, and the driven part faces downward Thus, the lower end of the cover cap body is seated on the stepped surface of the peripheral base portion of the shoulder cover that functions as the cover cap base portion. Further, four or more equally-spaced serrated guide portions have a geometric pattern.
[0009]
According to the third aspect, since the protruding surface located at the lower end of the first peripheral surface portion is the shoulder portion of the container, the cover cap main body is mounted on the cover cap base portion while being seated on the shoulder portion. According to the fourth aspect, the cover cap base portion also has a function of covering the shoulder portion by forming the cover cap base portion as a shoulder cover that covers the shoulder portion of the container. According to claim 5, the mark that indicates the position where the driven portion enters between the adjacent guide portions from above is formed on the peripheral surface base portion of the cover cap main body and the cover cap base portion. And the guide portion are instructed to attach and detach the cover cap body.
[0010]
According to the sixth aspect of the present invention, an upper surface peripheral portion having an opening for projecting the ejection head is formed at the upper end of the cover cap base, and the outer circumference of the ejection head is constrained to restrain the ejection head from coming out of the opening. By projecting the flange portion having an outer diameter larger than the diameter of the opening portion, the flange portion of the ejection head detached from the container head is restrained by the opening portion.
[0011]
According to the seventh aspect, the cover cap for an ejection head having the above-described configuration can be attached particularly to an aerosol container. In this case, according to claim 8, the cover cap base portion is wound around the shoulder portion of the aerosol container and the tip portion thereof, and surrounds the winding portion of the mounting cup for projecting the stem on which the injection head is fitted. And a retreating surface of the middle stage as a first circumferential surface part and a retreating of the upper stage as a second circumferential surface part that gradually decrease the outer diameter stepwise as it goes upward from the circumferential surface base. By providing the peripheral surface portion, it is formed as a shoulder cover that covers the shoulder portion, and the peripheral surface base portion is formed in a double layer shape by including an inner peripheral surface portion having a convex portion that engages with the winding portion. At the same time, the cover cap base is attached to the fastening part of the mounting cup as usual, by connecting the notch end part with the inner peripheral part cut away to the peripheral base part and partially forming a single layer. Rutotomoni, when flexed by pressing the single layer portion at the time of disposal, disengaged from the seaming portion flexes be the inner surface in conjunction.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A case in which the cover cap for an ejection head according to the embodiment of the present invention is applied to an aerosol container provided with an ejection button will be described with reference to FIGS. A mounting cup 2 holding a valve structure with a stem 3 is wound around the tip of a frustoconical shoulder 1a formed on the upper part of the cylindrical aerosol container 1, and upwardly biased from the mounting cup. In the stem 3 protruding in a state, an injection button 9 as an injection head main body is fitted at the base end portion of the nozzle inside thereof, so that the contents of the aerosol container 1 can be removed from the lateral injection port 9a by a push-down operation. Spray. Further, the aerosol container is provided with a cover cap, and covers the shoulder portion 1a as the cover cap base, for example, a synthetic resin shoulder cover 10 colored in white, and a spray button that is detachably attached to the shoulder cover. 9 is composed of a transparent synthetic resin cover cap body 20 that surrounds 9 from above.
[0013]
The shoulder cover 10 has, as an annular peripheral surface portion, a peripheral surface base portion 11 that surrounds the periphery of the shoulder portion 1a and the tightening portion 2a of the mounting cup 2 that is wound around the front end portion thereof, and further upward from the peripheral surface base portion. A middle stage retreating peripheral surface part 12 and an upper stage retreating peripheral surface part 13 are provided which gradually decrease the outer diameter in a stepped manner as it goes. As shown in FIG. 4, the peripheral surface base portion 11 is provided with a convex portion 14 a that externally engages with the tightening portion 2 a at the lower end portion, and an arc-shaped inner peripheral surface portion 14 that is continuous in a range wider than 180 °. It is formed inside and is formed in a double layer shape. Further, as shown in FIG. 5, the inner peripheral surface portion is cut out and abolished within a range of about 30 °, and the peripheral surface base portion 11 is partially formed as a single layer, and both sides of the single layer portion 14b. The notch end portion 14 c of the inner peripheral surface portion 14 is connected to the peripheral surface base portion 11 at the end portion of the inner peripheral surface portion 14.
[0014]
At the upper end of the receding peripheral surface portion 13, an annular upper surface peripheral portion 15 having an opening 15 a for projecting the injection button 9 is formed. The diameter of the opening 15a is set to be slightly smaller than the outer diameter of the annular flange portion 9b projecting outward from the lower end of the outer periphery of the cylindrical injection button 9. As a result, the shoulder cover 10 is attached by being externally engaged with the tightening portion 2 a by the convex portion 14 a of the inner peripheral surface portion 14 in a state where the injection button 9 is fitted to the stem 3.
[0015]
The inner diameter of the peripheral surface portion 21 of the cover cap body 20 is in contact with the outer diameter of the receding peripheral surface portion 12, and the outer diameter substantially corresponds to the outer diameter of the peripheral surface base portion 11. It is set so as to be seated on a horizontal stepped surface 11a formed between the lower ends, and eight longitudinal ribs 21a are formed at equal intervals on the outer peripheral surface as anti-slip during rotation operation. The outer peripheral surface 21 and the outer peripheral surface of the shoulder cover 10 are set to be slightly smaller upward.
[0016]
As shown in FIG. 2, the middle retreating peripheral surface portion 12 is gradually lowered in the clockwise direction and inclined toward the staircase surface 11 a, and has a thickness smaller than the retreating amount of the retreating peripheral surface portion 12. Eight saw-tooth-shaped guide portions 17 projectingly protrude at regular intervals. Correspondingly, on the inner peripheral surface of the proximal end portion 20a that contacts the outer peripheral surface of the receding peripheral surface portion 12 of the cover cap body 20, as shown in FIG. A driven portion 23 is formed. These driven portions are formed in the annular portion below the boundary line 24a connecting the diameters of the semicircular portions by forming the concave portions 24 by leaving the semicircular portions thin, and the remaining protruding portions. It is formed with.
[0017]
Behind the guide portion 17, the driven portion 23 slides down the guide portion 17 so that the lower end of the cover cap body 20 is seated on the step surface 11 a, and the cover cap body 20 is slightly rotated clockwise. A rotation operation area 17b to be operated is formed. That is, the adjacent serrated guide portions 17 are separated at such intervals, and the rising portion functions as a stopper portion 17 a that restrains the rotation of the driven portion 23.
[0018]
A locking claw 18 protrudes in a counterclockwise region from above the stopper portion 17 a at the upper end portion of the upper retreating peripheral surface portion 13 with a protruding amount that does not protrude from the retreating peripheral surface portion 12. The circumferential width of the arcuate line-shaped locking claw is such that the distance between adjacent ones is slightly wider than the maximum width of the driven portion 23 so that the semicircular driven portion 23 can enter from above. Set and rounded on both sides. Correspondingly, an arc-line-like locked claw 27 having a slightly narrower width than the maximum width projects from an upper region of the driven portion 23 on the inner peripheral surface of the cover cap body 20. The height of the latching claw is slightly above the boundary line 24a and the lower end 21b of the cover cap body 20 is seated on the stepped surface 11a, or approaches the back surface of the latching claw 18 or It is set so that it touches lightly without being pressed. The protruding amount of the locked claw 27 is set so as to reach the back surface of the locking claw 18 without colliding with the receding peripheral surface portion 13.
[0019]
A single vertical line mark 19 projects from the outer peripheral surface of the peripheral surface base 11 below the intermediate position between the two adjacent locking claws 18. Thereby, when any rib 21 a that functions as a mark indicating the intermediate position of the driven portion 23 of the cover cap body 20 is aligned with the mark 19, the driven portion 23 is located between the locking claws 18, that is, above the guide portion 17. Position is set.
[0020]
The operation of the cover cap of the aerosol container 1 configured as described above is as follows. When the cover cap body 20 is attached to the shoulder cover 10, when any one of the ribs 21 a is aligned with the mark 19 and each driven portion 23 is inserted between the adjacent locking claws 18 from above, a dotted line in FIG. Through the insertion process of the follower portion 23 shown, the guide portion 17 comes into contact. When the cover cap body 20 is lightly pushed in addition to its weight, the cover cap body 20 descends as each driven portion 23 slides along the associated guide portion 17. When the lower end 21b of the cover cap body 20 abuts against the stepped surface 11a, if it is slightly rotated clockwise, each driven portion 23 is restrained by the associated stopper portion 17a, and each locked claw 27 is It penetrates into the back side of the associated locking claw 18 and is prevented from being removed. When the cover cap body 20 is rotated, the rib 21a functions as a slip stopper.
[0021]
Even if a counterclockwise impact is applied to the cover cap body 20 in this mounted state, the driven portion 23 does not come off due to contact with the guide portion 17 of the rising slope. Even if an impact is applied to the upper part, the engagement of the locking claw 18 and the locked claw 27 restrains the detachment of the cover cap body 20. Through the transparent cover cap body 20, the outer peripheral lines of the sawtooth guide portion 17 and the transparent semicircular follower portion 23, which are colored in a symmetrical geometric pattern, are inspected to present a unique design.
[0022]
When the cover cap body 20 is removed from the shoulder cover 10, when the cover cap body 20 is rotated counterclockwise, each driven portion 23 is lifted by sliding the associated guide portion 17, and each locked claw 27 is moved. It can be detached from the associated locking claw 18 and pulled out upward in a state where each driven portion 23 is positioned in the gap between the adjacent locking claws 18. This removal position can be confirmed by aligning the ribs 21 a with the marks 19. Each to-be-latched claw 27 is only prevented from being displaced and restrained from being displaced upward by the associated claw 18, and requires only a small rotational operation force.
[0023]
During use of such an aerosol container 1, when the injection button 9 is detached from the stem 3, the flange portion 9 b is restrained at the peripheral portion of the opening 15 a of the shoulder cover 10. Therefore, the loss of the injection button 9 can be prevented particularly when used outdoors at night. Further, when the aerosol container 1 is disposed of, the shoulder cover 10 with the cover cap body 20 attached or removed, when the single layer portion 14b is pressed, the inner peripheral surface portion 14 is also flexibly wound and tightened. By partly detaching from the part 2a, it can be easily detached from the aerosol container 1.
[0024]
The cover cap described above is an injection configured as a spout of an aerosol container in which a pipe-shaped nozzle having an upward injection port and an operation portion is connected to the peripheral portion 15 of the upper surface of the shoulder cover 10 by an integral hinge portion. It can also be applied to the head.
[0025]
Further, FIG. 6 shows a cover cap applied to an injection head for a pump, and the same or equivalent parts as those described above will be described with the same reference numerals. The shoulder cover 30 includes a peripheral surface portion 12c slightly retracted from the peripheral surface of the container 5 and a retractable peripheral surface portion 13 that reduces the outer diameter in a stepped shape. In addition, an operation portion 37 and a nozzle 36 are provided by being screwed to the mouth portion 6 of the container 5 at the inner peripheral surface portion 35, and a discharge pipe 38 for operating the built-in pump body by a pressing operation is provided. The ejection head 39 is attached to the mouth portion 6.
[0026]
In this case, since the shoulder cover 30 does not include the peripheral surface base portion, the peripheral portion of the shoulder portion 5a functions as the protruding surface 5b from the peripheral surface portion 12c, and the lower end of the cover cap body 20 is seated. When the outer diameter of the container 5 is larger, the cover cap base is set to an outer diameter corresponding to the ejection head 39 and may not be configured as a shoulder cover.
[0027]
【The invention's effect】
According to the first aspect of the present invention, the cover cap main body is attached to the cover cap base portion in a state of being prevented from being pulled down by a slight force depression and a slight rotation amount. Further, the cover cap body can be automatically lifted and removed only by rotating the cover cap body in the reverse direction with a slight force. According to the invention of claim 2, the lower end of the cover cap body is seated on the peripheral surface base portion of the shoulder cover, and a unique design of the geometric pattern is constituted by the guide portion. In particular, when the cover cap body is made transparent, it is viewed with the semicircular follower. According to the invention of claim 3, the peripheral base portion of the cover cap base portion can be abolished by the cover cap body seated on the shoulder portion of the container. According to the fourth aspect of the present invention, the cover cap base portion is configured as a shoulder cover that covers the shoulder portion of the container, thereby ensuring appearance. According to the invention of claim 5, it is easy to confirm the mounting and removing positions of the cover cap body. According to the invention of claim 6, even when the single jet head is detached from the container head, it is restrained from coming off from the cover cap base.
[0028]
According to the invention of claim 7, such a cover cap for an ejection head can be attached to an aerosol container provided with an ejection button or a spout as an ejection head on the head. In that case, according to the invention of claim 8, the cover cap base portion as a shoulder cover attached to the tightening portion of the mounting cup of the aerosol container is removed from the aerosol container by a simple operation at the time of disposal.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cover cap for an injection head attached to an aerosol container according to an embodiment of the present invention.
FIG. 2 is a side view of a shoulder cover of the cover cap.
FIG. 3 is an enlarged partial cross-sectional view of the main body of the cover cap.
FIG. 4 is a cross-sectional view when the cover cap is mounted.
5 is a cross-sectional view taken along line AA in FIG.
FIG. 6 is a schematic cross-sectional view of an ejection head cover cap according to another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Aerosol container 1a Shoulder part 2 Mounting cup 3 Stem 6 Mouth part 9 Injection button 9b Flange part 10,30 Shoulder cover 11 Shoulder cover peripheral surface base part 11a Step surface 12,13 Shoulder cover retreat peripheral part 12c Peripheral part 14b Single layer Portion 17 Guide portion 17a Stopper portion 18 Locking claw 19 Mark 20 Cover cap body 20a Base end portion 21 of the cover cap body Circumferential surface portion 21a of the cover cap body Rib 23 Followed portion 24 Recessed portion 27 Locked claw 39 Jetting head

Claims (8)

In a cover cap for an ejection head in which a cover cap body that covers the ejection head from above is detachably attached to a cover cap base that surrounds the ejection head that is protruded so as to be pushed down to the container head.
The cover cap base portion includes first and second annular peripheral surface portions that reduce the outer diameter in a stepped manner as it goes upward, and is gradually formed on the first peripheral surface portion in one rotational direction. A plurality of guide portions that are inclined so as to descend and project by a thickness thinner than the thickness of the base end portion of the cover cap body, and on the inner peripheral surface of the base end portion, A driven portion that is in contact with the first peripheral surface portion and slides along the guide portion is provided to protrude.
The driven part slides down the guide part and descends so that the lower part of the cover cap main body is seated on the projecting surface located at the lower end of the first peripheral surface part. A stopper portion that restrains the driven portion that is rotated in the one rotation direction is formed behind the guide portion, respectively.
Locking claws project from the upper region between adjacent guide portions in the second peripheral surface portion, and the driven portion is in the upper region of the driven portion on the inner peripheral surface of the cover cap body. A cover cap for an ejection head, wherein locked claws that are retained by the locking claws while being restrained by a stopper portion protrude toward the second peripheral surface portion, respectively. The cover cap base portion has an annular peripheral surface base portion, and a middle receding peripheral surface portion and a second peripheral surface as a first peripheral surface portion that gradually decreases the outer diameter in a stepped manner as it goes upward from the peripheral surface base portion. And a stepped surface as a projecting surface between the upper end of the peripheral surface base and the lower end of the intermediate retreated peripheral surface portion. Formed,
Four or more serrated guide portions are formed at equal intervals on the retreating peripheral surface portion of the middle stage, the rising portion of the serrated guide portion is formed as a stopper portion, and the follower portion is a semicircular shape downward. The ejection head cover cap according to claim 1, wherein the ejection head cover cap is formed. The ejecting head cover cap according to claim 1, wherein the projecting surface located at the lower end of the first peripheral surface portion is a shoulder portion of the container. 2. The cover cap for an ejection head according to claim 1, wherein the cover cap base portion is formed as a shoulder cover that covers the shoulder portion of the container. 5. A mark for instructing a position where the driven portion is inserted from above between adjacent guide portions is formed on the peripheral surface base portion of the cover cap main body and the cover cap base portion. A cover cap for an ejection head as described above. An upper surface peripheral portion having an opening for projecting the ejection head is formed at the upper end of the cover cap base, and the outer circumference of the ejection head is restrained from escaping from the opening. The jet head cover cap according to any one of claims 1 to 5, wherein a flange portion having an outer diameter larger than a diameter of the opening portion is protruded. An aerosol container with a cover cap, comprising the jet head cover cap according to any one of claims 1 to 6. A cover cap base to which the cover cap main body is detachably attached includes an annular peripheral surface base that surrounds the shoulder portion of the aerosol container and the tightening portion of the mounting cup that is wound around the distal end portion thereof, and the peripheral surface base portion. The shoulder portion includes a middle receding peripheral surface portion as a first peripheral surface portion and an upper receding peripheral surface portion as a second peripheral surface portion, the outer diameter of which gradually decreases stepwise as it goes upward. Covered as a shoulder cover,
The peripheral surface base portion is formed in a double layer shape by including an inner peripheral surface portion having a convex portion that engages with the tightening portion, and a notch end portion in which the inner peripheral surface portion is cut is formed as the peripheral surface base portion. The aerosol container with a cover cap according to claim 7, wherein the container is partially formed into a single layer by being connected to the cover.

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